Related Questions
Select the wrong statement.
Diatoms are microscopic and float passively in water.
The walls of diatoms are easily destructible.
‘Diatomaceous earth’ is formed by the cell walls of diatoms.
Diatoms are chief producers in the oceans.
Diatomaceous earth is used in:
I) Polishing II) Filtration of Oils and Syrups
III) Production of antibiotics IV) Production of Biogas
I, II
II, III
III, IV
I, IV
Analyse the following statement and identify the correct option given below
I. In diatoms the walls are embedded with silica and thus, the walls are indestructible
II. Diatoms have left behind large amount of cell wall deposits in their habitat, this accumulation over billions of year is referred to as diatomaceous deposition or diatomaceous earth
I is true, but II is false
I is false, but II is true
I and II are true
I and II are false
Siliceous frustules of diatoms being indestructible, piled up at the bottom of ocean and formed a thick bed over billions of years. Such a thick bed is known as
Red sea
Diatomaceous earth
Pseudorocks
Red tides
Diatomaceous earth is used in:
I) Polishing II) Filtration of Oils and Syrups
III) Production of antibiotics IV) Production of Biogas
I, II
II, III
III, IV
I, IV
Diatomaceous earth is obtained from
bacillariophyceae
xanthophyceae
rhodophyceae
chrysophyceae
Diatomaceous earth is used for all except
Filtration of oils
Filtration syrups
Polishing
Gobar gas production
Select the wrong statement.
Diatoms are microscopic and float passively in water.
The walls of diatoms are easily destructible.
‘Diatomaceous earth’ is formed by the cell walls of diatoms.
Diatoms are chief producers in the oceans.
Siliceous frustules of diatoms being indestructible, piled up at the bottom of ocean and formed a thick bed over billions of years. Such a thick bed is known as
Red sea
Diatomaceous earth
Pseudorocks
Red tides
Analyse the following statement and identify the correct option given below
I. In diatoms the walls are embedded with silica and thus, the walls are indestructible
II. Diatoms have left behind large amount of cell wall deposits in their habitat, this accumulation over billions of year is referred to as diatomaceous deposition or diatomaceous earth
I is true, but II is false
I is false, but II is true
I and II are true
I and II are false